Abstract

The highly efficient, compact and powerful solid-state 2-μm laser sources are very attractive devices to use in surgery, material processing, lidars, gas detection, and pumping of mid-IR optical parametric oscillators [1]. Recently, both CW and pulsed (Q-switched or mode locked) oscillations were demonstrated at 2066 nm in the Tm³⁺-doped polycrystalline Lu₂O₃ ceramics with the 800-nm diode or Ti:S-laser pump [2,3], and the 1.2-μm semiconductor disc-laser pump [4]. This paper is devoted to the experimental investigation of the Tm³⁺:Lu₂O₃ ceramic laser with in-band pumping at 1670 nm by a Raman shifted erbium fiber laser.

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